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Matrix Hybridization Effects on Interlaminar Fracture Toughness of Glass Epoxy Laminates using Nano and Micro fillers

Authors

  • Anant Joshi Department of Mechanical Engineering KLS VDIT, Haliyal, Reserch center, Department of Mechanical Engineering, SDMCET, Dharwad, Visvesvaraya Technological University, Karnataka, India
  • Shivakumar Gouda Research Center, Department of Mechanical Engineering, SDM College of Engineering & Technology, Dharwad, Visvesvaraya Technological University, Karnataka, India.
  • I. Sridhar Research Center, Department of Mechanical Engineering, SDM College of Engineering & Technology, Dharwad, Visvesvaraya Technological University, Karnataka, India.
  • M. A. Umar Farooq Center of Excellence in Material Science, School of Mechanical Engineering, KLE Technological University, Hubballi 580031, India
  • Vinayak Uppin Research Center, Department of Mechanical Engineering, SDM College of Engineering & Technology, Dharwad, Visvesvaraya Technological University, Karnataka, India.
  • B. H. Maruthi Prashanth Department of Mechanical Engineering, PA College of Engineering, Visvesvaraya Technological University, Mangalore, Karnataka, India.

DOI:

https://doi.org/10.3221/IGF-ESIS.65.05

Keywords:

Fracture Toughness, Delamination, Hybrid matrix, MWCNTs, Laminate

Abstract

The composite materials are normally made of reinforcements and resins. High-performance composites are generally termed hybrid composite materials. Generally, fiber-reinforced composite laminates are very weak in their out-of-plane properties, to address this issue unidirectional (UD) Glass laminates are prepared by modifying epoxy matrix using plasma-treated multi-walled carbon nanotubes (MWCNTs) and compared with low-cost micro fillers like Aluminum oxide (Al2O3) and Sodium Carbonate (Na2CO3) in the epoxy matrix. All these Nano and Micro fillers were loaded in the range of 0.5wt% to 2wt% in epoxy. The addition of these fillers in the epoxy matrix was found to be effective in increasing the out-of-plane load-bearing capacity of the composites as compared to plain Glass epoxy laminates. Also, the fracture toughness enhanced in the range of 20-26% and 14-17.5% under mode I and mode II loading respectively. Scanning electron microscopic analysis was done for delaminated glass laminates and found that the delamination of fibers is the significant failure mechanism during crack initiation from the crack tip.

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Issue

Vol. 17 No. 65 (2023): July 2023

Section

Fracture

Categories

License

Copyright (c) 2023 Anant Joshi, Shivakumar Gouda, I. Sridhar, M. A. Umar Farooq , Vinayak Uppin, B. H. Maruthi Prashanth

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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Open Access Statement

Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

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